For the human brain, the LSAT requires reasoning. But not for an LLM. Do we even know exactly what data this is trained on? I have only seen vague references to what data they are using. If it is trained on large chunks of the internet, then it certainly is trained on LSAT practice questions. And because LSAT questions follow a common pattern, it is well suited to a LLM. There isn't any reasoning or general intelligence at all. Just really good statistics applied to large amounts of data.